671001356546 has 4 divisors (see below), whose sum is σ = 1006502034822. Its totient is φ = 335500678272.

The previous prime is 671001356533. The next prime is 671001356569. The reversal of 671001356546 is 645653100176.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 510231633025 + 160769723521 = 714305^2 + 400961^2 .

It is a junction number, because it is equal to n+sod(n) for n = 671001356497 and 671001356506.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167750339135 + ... + 167750339138.

Almost surely, 2^671001356546 is an apocalyptic number.

671001356546 is a deficient number, since it is larger than the sum of its proper divisors (335500678276).

671001356546 is a wasteful number, since it uses less digits than its factorization.

671001356546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335500678275.

The product of its (nonzero) digits is 453600, while the sum is 44.

The spelling of 671001356546 in words is "six hundred seventy-one billion, one million, three hundred fifty-six thousand, five hundred forty-six".